Fountain-pen.



C. H. NORTH.

FOUNTAIN PEN. APPucATfoN msnm/m. 29. 19:5.

- Patented Apr. 29, 1919.

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CHARLES H. NoitTH, 0E CLEVELAND, OHIO.

FOUNTAIN-PEN.

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To all whom 'it may concern j Be it known that I, CriAnLEs H. NORTH, a citizen of the United States ofAmerica, residing at Cleveland, in the county of Cuyahoga and State of QhiO, have invented cer-k tain new and useful Improvements in Fountain-Pens, of which the followin'g'is a specification. l

My invention `relates to improvements in fountainpens, and certain details which are more particularly applicable to a stylographic pen.` The fountain pen embodying my invention comprises a stylographic pointl which 'preferably is provided with a eweled tip, through which an adjustable wire is inormally spring-pressed, while the tip section is provided with an indirect air vent-which serves likewise as an inlet for the ink of the self-filling pen. The rubber ink bag is 'provided withv a lateral depressing member y swinging freely from a U-shaped hanger engaging slots at the top of the pen barrel, which hanger is adapted to be engaged by an inserted coin entering through a slot in .the barrel, for the purpose of depressing the ink bag. In order to avoid flooding', I have providedva slightly depressed channel upon the tip section, while ashoulder engages an elevated rim of the channel, and the tip engages a soft rubber stop, securely sealing the pen `tip against the drying of ink when the cap is screwed into position.

These, with other features of my improvements, will be better explained by making reference to the accompanying drawings, wherein l Figure l is a view in longitudinal section, showing a stylographic` pen equipped with my improvements. l n

F ig. 2 is a greatly enlarged end view showing the adjustable abutment for the feed wire. l v

Fig. 3 is an enlarged fragment partially in longitudinal-section showing the self-filling mechanism. y Y

Fig. 4L is an enlarged transverse section of the same on line t-i of Fig. l.

Fig. 5 is an enlarged view of the tip-section, shown partially in longitudinal section, and

Fig. 6 is an enlarged section of the jeweled tip and mounting. v

' `lhroughout the several figures of the drawings I have employed the same character of reference to indicate similar parts.

Referring first to Fig.` 1,-it is seen that the Specification of Letters Patent.

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Application rled March 29, 1915. Serial No. 17,624.V

barrel a is slotted at a', while partial dia-- metrical slots a are provided at the end thereof, which accommodate the extended terminals of a lLl-shapedhanger secured to the metal depressing strip which overlies the soft rubber ink bag c.

The mouth of the ink bag is slipped over` i the nipple d of the intermediate section (l, which section is threaded to screw into the barrel a, and which terminally carries the tip section el. VWithin a gold mounting sleeve f there is provided a bored jeweled point through which passes the feed wire g, so that its extremity extends slightly bef; ond

the jewel, and serves to permit the flow of ink whensaid jewel point is pressed upon the v paper. The rear of said wire is carried by a screw threaded block gf against which a spring g re-acts normally,to press the wire beyond the opening in the-jewel. The sides of the block are cut away as shown in Fig. 2, so that an adjustment of the wire is thereby obtainable, and free access is afforded to the axial ink passage inthe tip section.

'Ihe construction of the tip section c (best shown in Fig; 5)' is peculiar to my improved pen, comprising as it Adoes a valveseating extremity, e', adapted to engage the rear inclined walls l? of the intermediate section d, for which they form a seat. An annular channede affords co1n munication between the inner vent e3 and the externalV vente, bored at opposite sides of the tip section. The latter vent eommuni cates with the bottom. of a tip channel c5 whichV has a wall e spaced apart from the rim of the intermediate section by a second channel, and the said wall is constructed approximately one thirty-second of an inch less in height than the rim d of the intermediate section (see Fig. l), whereby I am enabled to prevent flooding of the pen, and maintain the exterior of the tip section free from ink. The cap 7L is adapted to screw upon the barrel, and contains at its extremity a button h of soft rubber, adapted to close the opening in the jewel, while' a sleeve h closely engages the rim c of the intermediate section and thereby prevents any leakage into the cap, through capillary action.l

In order to provide a smooth non-wearing point, I have equipped my pen with a cen trally bored jewel f, which admits of high polish, and which is mounted in the tip section by means of a gold sleeve f. This jewel is preferable to any writing tip previously used in the art, and by reason of its nonwearing qualities and high polish, the said jewel is as satisfactory after years of use, as when the pen was first constructed. As the feed wire is liable to slight wear, the block mounting the same is adapted to be screw-adjusted farther into the tip section, to compensate for such wear. The sides of the threaded block g are slightly cut away to permit of such adjustment, and facilitate the flow of ink, while the stem of said wire g, which passes readily through the block, is rearwardly upset or terminally enlarged to form an abutment for maintaining the spring under tension. l/Vith the construction shown, the pen may be opened for filling with an ink dropper, if desired, merely by unscrewing the self-contained point and tip section, which is threaded into the intermediate section to form a valve seat rearwardly therewith.

Ordinarily, the self filling feature will be relied upon by practically all users of the pen, and I have employed the simplest and most advantageous form known to me for this construction, in explaining my invention, although not claimed herein. The barrel a is provided with no protruding part, and in consequence an accidental discharge of the ink is practically impossible. In order to afford as great a capacity as possible, which is essential in the smaller sizes of fountain pens, I have provided merely the metal depressing strip which is adapted to lie directly against the bore of the barrel adjacent to the slot, and which is held in position by the pivoting hanger b, removably secured at the end of the barrel by a threaded plug b. It is practicable to use a longer and wider ink bag than is shown in the drawing, but ordinarily the proportions set forth are observed, for the reason that the extended end of the ink bag is more likely to` be cramped without being fully depressed by the hanger b. Moreover, the motion of the bar when depressing the ink bag, is toward the nipple of the intermediate section, from which it is spaced some distance, hence there is no tendency to displace or tear the rubber and thereby impair the efliciency of the pen. In Fig. l, the bar is shown slightly depressed by an inserted coin indicated by dotted lines, while in Fig. 4l, the fully depressed -position of the parts is also illustrated.

ploy a polished agate or ruby jewel, centrally tapered and bored to afford a slight terminal clearance for the wire g, and since this jewel is indestructible, a pen once selected to suit the writing of the user may be continued in use indefinitely and without impairment.

Having now described the preferred embodiment of my invention, I claim as new, and desire to secure by Letters Patent, the following l. In a fountain pen, the combination with an ink-container, of a tip-section having an inner vent extended closely adjacent to the writing point of the pen, an outer vent and an indirect connection between said vents positioned at a distance above the inner vent, substantially as set forth.

2. In a fountain pen, the combination with an ink-container, of a tip-section therefor, the same having a diagonal inner vent interiorly extending closely adjacent to the outer extremity of said section, an external vent and a connecting transverse channel positioned at a distance above the inner vent uniting said inner and outer vents, substantially as set forth.

3. In a fountain pen, the combination with an ink-container, of a tip-section havino' an external vent formed therein, a channe into which said vent opens and a second Channel separated from the rst by a slightly depressed wall, and a screw cap formed to engage the outer wall of said channel, substantially as set forth.

t. In a fountain pen, the combination with an ink containing barrel, of a tip-section secured by screw-threads to said barrel, a valve seat provided interiorly of said pen against which the rear of the tip-section abuts, said tip-section having an ink passage opening adjacent to the valve seat and an external vent provided in said tip-section below the valve seat, substantially as set forth.

5. In a fountain pen, the combination with a barrel, of an intermediate. section screwing therein, an inl; container within the barrel and connected with said intermediate section, a tip-section screwing into said intermediate section, a writin g poi nt thereon said intermediate and tip-sections being separated by an exterior annular channel, the inner wall of which is slightly lower than the outer wall and said tip-section having an exterior annular channel formed therein adjacent to said depressed wall, and a cap adapted to t over the tip-section and barrel, substantially as set forth.

6. In a fountain pen, the combination with an ink-container, of an associated tipsection removably secured thereto, a writing point provided upon said tip-section; said section having two "annular grooves of different depth positioned adjacent to the writing point `and a vent extending from the inner and deeper groove to the interior of the lio pen7 and a screw cap engaging the walls of the outer and shallower groove, sub-stantially as set forth.

7. In a fountain pen, the combination with an idk-container, of a. tip-section and its writing point secured to said ink-container by a screw threaded connection; said tipsection having an inner vent extending downwardly adjacent to the writing point, an outer vent and a connecting interior annular groove uniting said vents7 whereby the ink and air are caused to travel in opposite directions through the connecting passages afforded by said tip-section, substantially as set forth.

8. In a. fountain pen, the combination with an ink-containing barrel of a tip-section therefor; the same having an external vent leading toward the upper portion of the tip section, and an internal vent leading toward the lower portion and opening closely adjacent to 'the extremity of the tip-section and a connection between said vents positioned at some distance from the outlet of the inner vent whereby the air is caused to travel in opposite directions within the tipesection, substantially as set forth.

9. In a fountain pen, the combination with an ink-containing barrel and its shouldered tip-section, of a screw cap fitting over and interiorly abutting the shouldered portion of the tipssection; said shouldered portion having two annular grooves and an annular wall intermediate thereof sufficiently deressed to remain out of engagement with :l

the screw cap, substantially as set forth.

10. In a stylographic pen, the combination with an ink-containing reservoir and its connected tip-section, of a centrally bored tapered jewel forming the writing point thereof, a non-corrosive mounting sleeve therefor and a feed wire extending within the bore of said jewel, substantially as set forth.

l1. In a stylographic pen, the combination with an ink-container and its connected tip-section, of a stylographic point for said tip-section comprising a centrally bored and polished jewel tapering interiorly and mounted within the tip-section, and a feed wire extending through the bore of said jewel, substantially as set forth.

l2. In a stylographic pen, the combination with an ink reservoir and its connected tip-section, of a non-wearing centrally bored writing point terminating said tip-section, a feed wire extending through said point, and a screw-adjustment for said feed wire, substantially as set forth.

In testimony whereof I do now affix my signature in the presence of two witnesses.

CHARLES H. NORTH. [n s] Witnesses:

A. C. KNIGHT,

ALBERT LYNN LAWRENCE.

Copies or this patent may be obtained for ve cents each, by addi-caring the Gommiaioner er llateata,

Waahlnmon, D. E." 

